<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header class="home-header">
      <div>
        <img src="../assets/logo.png" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button @click="removeToken()" type="primary">退出</el-button>
    </el-header>
    <!-- 页面主体区域 -->
    <el-container class="">
      <!-- 侧边 -->
      <el-aside :width="isCollapse ? '64px':'200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <el-menu
          background-color="#545c64"
          text-color="#fff"
          active-text-color="#3B86E8"
          unique-opened :collapse="isCollapse"  router :default-active="activePath"
        >
          <!-- 一级菜单 -->
          <el-submenu  :index="item.id+''" v-for="item in menuList" :key="item.id">
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconsObj[item.id]"></i>
              <!-- 文本 -->
              <span>  {{item.authName}} </span>
            </template>

            <!-- 二级菜单 -->
              <el-menu-item  :index="'/'+subItem.path" v-for="subItem in item.children" 
              :key="subItem.id" @click="saveNavState('/'+subItem.path)" >
                <template slot="title">
                  <!-- 图标 -->
                  <i class="el-icon-menu"></i>
                  <!-- 文本 -->
                  <span>{{subItem.authName}}</span>
                </template>
              </el-menu-item>

          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 侧边主体 -->
      <el-main>
        <!-- 路由占位符 -->
       
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  name: 'Vue2shopHome',

  data() {
    return {
      menuList: [],
      iconsObj:{
        '125':'iconfont icon-user',
        '103':'iconfont icon-tijikongjian',
        '101':'iconfont icon-shangpin',
        '102':'iconfont icon-danju',
        '145':'iconfont icon-baobiao',
      },
      isCollapse:false ,
      activePath:'',
    }
  },
  created() {
    this.getMenuList()
    this.activePath=window.sessionStorage.getItem('activePath')
  },
  mounted() {},

  methods: {
    //注销登陆
    removeToken() {
      window.sessionStorage.removeItem('token')
      this.$router.push('/')
      this.$message.warning('已注销登陆！')
    },
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200)
        return this.$message.error(res.meta.msg)
      this.menuList = res.data
      // console.log(res)
    },
    // 折叠侧边菜单
    toggleCollapse(){
      this.isCollapse=!this.isCollapse
    },
    //保存链接激活状态
    saveNavState(activePath){
      window.sessionStorage.setItem("activePath",activePath)
      this.activePath=window.sessionStorage.getItem('activePath')
    }

  },
}
</script>

<style lang="scss" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0%;
  align-items: center;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu{
    border-right: none;
  }
  
}
.el-main {
  background-color: #eaedf1;
}
img {
  height: 50px;
  width: 50px;
}
.toggle-button{
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>